Aluminum mold milled with CNC machine, complete with seat for long tail by 2 mm (on sale in our page dedicated to the hooks). This form golf ball is used in bottom fishing - surf casting, using in many parts of the world, the front surface with a peel aramcia creates a cushion of air which increases casting distance. Good stability in flight by having the center of gravity forward and self-aligning due to the lon tail. The length of the long tail can be adjusted with ease while remaining in the mold for casting horizontal, giving you the ability to add any beads swivels etc.. Corresponding to 90 and 115 grams